I've got a 2005 650 that is pouring gas out of a tube under the carb. It only pours when its started and running. Won't idle

Did you by chance over fill the crankcase with oil?

Throttle body or carburetor ?

carburetor needs cleaning. sounds like the Needle valve is not doing its job

Its probably the crankcase vent. The carbs have more than likely been pouring gas inside the motor,to the point of overfilling the crankcase oil with gasoline. Drain the oil and change the filter. And while youre draing it,..look inside the carb bodies,and see if gas is still running into the cylinders.If it is,then your float height is not set correctly..(too high)...or the needle valves need to be replaced. (valve that hooks onto the floats).

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Your fuel pump is on its way out it's giving you signs what you see is what normally happens when fuel pumps go out best of luck to you

rebuild or replace the carb- it isn't working properly. You may just need to clean it good as there may be a partial blockage.

This truck is fuel injected, the problem sounds like a weak fuelpump, it runs when you pour gas into it until that gas runs out, the first thing is to test the fuel preasure, if the pump is weak it may run with gas poured into it but wont idle, also a common problem is the coolant temp sensor and the ground wires to thermostat housing bolt but i wont bet its the pump inside the fuel tank, if you put a fuel gauge on it there should be at least 55-61 psi if its a few pounds lower it can cause problems, you have everything else and it runs with gas poured so its a fuel problem check the preasure, theres a valve up top on the fuel line to connect a fuel gauge to it, start there hope this is helpful.

Hi and welcome to FixYa,

Gas pouring out is an overflow. The only reason there would be an overflow is when the float activated valve does not close the fuel inlet port. This could be caused by dirt, sand, rust or any foreign material. Fix would call for a carb pulldown, soaking non-rubber parts, and cleaning.

Good luck and thank you for asking FixYa.

I'm new to the site and new to carbs. I bought a bike last week that had been sitting in a barn for a couple years the engine hadn't been running in over a year. I was able to get it running the first day after cleaning out the field mouse home occupying the air filter chamber and swapping the old gas for new gas. The bike ran and idled fine but the left carb (dual carb setup Keihin) poured gas from the tube coming out the bottom. I did some research and found out the floats may be stuck. I went ahead and ordered new floats and float bowl gaskets. I took the carbs apart apart as much as I could, using Berryman parts cleaner to soak all the metal parts I could get off. I put everything back together and put the new floats in yesterday. I started the engine and not only is the gas is still pouring out the bottom of the left carb, but now the bike is idleing very fast. The idle adjustment is backed out completely. When putting the carbs back together, I screwed all the jets back in all the way. I screwed in the Pilot Air screw, the one with the spring, all the way in, then backed it out 1 1/2 turns. Not sure if this has anything to do with the idle. As far as the floats go, does it sound like I need to replace the float valves too? ,The seats on the jets, or the o-rings on the needle valves that the floats control are probably leaking.,,,